Improvement in buckboard-wagons



R. P. & A. KING.

BUCK-BOARD WAGON.

Patented Dec. 26, 1876.

TIIEGRAPHIC (2)345.

UNITED STATES PATENT ROBERT P. KING AND ANDREW KING, OF LOWVILLE, NEW YORK.

IMPROVEMENT IN BUCKBOARD WAGONS.

Specification forming part of Letters Patent No. 185,756, dat d December 26, 1876; applicatiol filed November 4, 1876.

To all whom it may concern:

Be it known that we, ROBERT P. KING and ANDREW KING, of Lowville, in the county of Lewis, in the State of New York, have made certain Improvements in Backboard-Wagons, of which the following is a specification:

Our invention consists in the construction of a yielding brace placed underneath and attached to the spring backboard at one end, and the other end to the axle or other rigid part; also, in interposing a spring beneath the spring-backboard and the axle of the wagon, as will be fully hereinafter described.

In the drawings, Figure l is a longitudinal sectional view of the wagon and our improvements. Fig. 2 is a broken section of the under side of the spring-backboard, giving a view of the under side of the improvement. Fig. 3 is an upright view of part of the forward end of wagon, and Fig. 4is an enlarged side view of the parts of our improvement.

A represents the usual spring backboard of a wagon, attached to the bolsters b b at each end in the usual manner. B represents the forward axle of the wagon, and as our improvement only has reference to the forward end of the wagon, all reference to the rear or hind part is omitted. B is an elliptical or other spring interposed between the forward bolster and axle. b is a rocker between the spring and axle. O is an angular arm or bracket, firmly bolted or fastened to the transverse bar 0 by bolts 0, with its forward end of such construction as to allow.two diverging braces, D D, that are bolted at their for ward ends to the under side of the springbackboard, to be pivoted thereto by a bolt to form a yielding joint as the backboard is bent down by its load to assume the curved line shown by dotted lines in Fig. 1. E is a jointed spring-brace, pivoted at its upper end firmly to arm or bracket 0 by bolt d, while its lower forward end is jointed at e to clip e on the under side, or to the axle-tree B, which receives through it the king-bolt e that holds the rocker 1), spring B, and clip 0 to the axle B. Spring-brace E, from point .90 to point a, is formed into a spring, or it may be of springsteel of sufficient width and thickness to not break under its load, and yet belittle or no hindrance to the springing down of the spring backboard A when loaded, and will greatly assist the backboard in recovering from any sudden concussion. causing it to yield downward suddenly, and prevent rupture which might occur. This is efiected by pivoting this spring-brace E to the under side of the springbuckboard at about the center, between the forward bolster and the center of the seat, where the weight is applied, thus strengthening the backboard, and giving ease and freedom to the backboard and spring B to act conjointly in their elasticity.

In Fig. 4, the brace E is shown as enlarged in its central part, and is rigid or unyielding, and answers the purpose very well, but we prefer the brace made as a spring, to connect the spring backboard with the axle, or a rigid part attached to the axle.

We sometimes construct the brace E without anyjoint, as seen at c, Fig. 2, but ajoint at that point relieves much of the strain when the backboard is loaded, and the wagon goes over obstacles, as the concussion is then great upon the brace, but the springbackboard, the jointed spring-brace, and a spring under the bolster, produce an easy riding, and, at the same time, a safe, wagon for light transportation. This construction of the device, composed of the bracket 0, braces D, and spring-jointed brace 6, also prevents any lateral or transverse strain upon the elliptic spring B, holding the parts in their relative positions at all times; and connecting the spring-buckboard to the axle, or other rigid part attached to the axle, by an intermediate spring or support, is of much utility in this construction of wagon.

By reference to Fig. 1 it will be seen that the bearing part of the seat A upon the spring-backboard is curved, so that when the backboard is sprung down to the dotted lines it will fit the curvature of the top of the buckboard; hence, when the load is on the board the seat will be firm in its base, with no tendency to rock back and forward, and it is held firmly, in the center of its sides, to the backboard by the bolts or other holding device a.

Having thus described our invention, what we claim, and wish to be secured by Letters Patent, is-

1. In a spring -bnckboard wagon, the combination of the spring-buckboard A, the arm or bracket C, the pivoted spring-brace E, with the axle B, as and for the purposesdescribed.

:2. In a spring-buckboard wagon, the combination of the spring-bnekboard A, arm 0, and pivoted donblejointed brace E, with the axle B, as and for the purposes described.

3. In a spring buckboard Wagon, the combination of the spring-bnckboard A, arm 0, brace E, and spring B, with the axle B, as and for the purposes described 4. In a spring buckboard Wagon, the combination of the spring-backboard A with the spring-brace E, attached to the under side of the buck-board A at one end, and the other end attached to the axle B, or other rigid part that is attached to the axle, as and for the purposes described.

5. In aspring-buckboard wagon, the spring B, interposed between the axle of the wagon and the end of the spring-board A, as and for the purposes described.

ROBERT P. KING. ANDREW KING. Witnesses:

J. MASON Goszmm, F. H. SOHOTT. 

